[x3d-public] Sophisticated plotting progress in X3DOM, "The imaginary part of the high-harmonic cutoff"

Thu Jul 27 14:27:01 PDT 2023

Looks like Wolfram Mathematica was used to initially create the
visualization?  Was there post-processing done?  I’m interested in
Mathematica, but probably 20+ years ago it was insufficient to do my
plotting.  Ms. Gorjanc from Zagreb’s work with Mathematica showed that such
things might be possible now.

If someone wants to test Mathematica a bit, try plotting:

r = A + B * cos (C * theta) * cos (D * phi)

in spherical coordinates.  A,B,C and D parameters vary over time.

My work is shown here: https://coderextreme.net/

I have some visualizations where people can vary the parameters on a web
page, thanks to X3DOM’s sliders, which i can’t access right now, but is
viewable as part of X3DJSONLD:
https://coderextreme.net/X3DJSONLD/src/main/html/sphere.html

My shaders for X3DOM are available in X3DJSONLD under src/main/shaders
(thanks to Holger, Yvonne and Mick). I can’t achieve anything near this
speed in pure ECMAScript.    Generating random numbers with a particle
system might be possible.

Joe, the editor has been featured before…I’m not sure why you haven’t seen
it.

If anyone wants to work on multi-user visualization, please let me know.
I have experience with socket.io, but I don’t have a server for
communication right now.  Christoph V?  Anyone?  Netlify?  SubZero?   I’ll
need to modify server-side code or just do multicasting.   A simple
multiuser forwarding server is all that is needed.  I don’t want extra
server or any multicast setup.  Something as simple as IRC I can work with,
I think, but I haven’t tried JavaScript IRC.  Perl and Java, yes.

Thanks for listening.

John

On Thu, Jul 27, 2023 at 3:14 AM Brutzman, Donald (Don) (CIV) <
brutzman at nps.edu> wrote:

> Plotting in X3DOM is achieving pretty amazing capabilities.  Full-screen
> images illustrate how the model is providing excellent interactive
> visualizations.  Added here is link to a hi-resolution image captured on a
> cell phone, where the 3D plot is viewable and manipulable even on a small
> screen.
>
>
>
>    -
>    https://andreasplesch.github.io/Library/Viewer/index.html?url=https://gist.githubusercontent.com/andreasplesch/7716cf62d552a92504f704c6512b1738/raw/37eda2caeaa9a37ec712c93239485fc9385ce394/imaginary-harmonic-cutoff-figureOc_alpha.x3d
>    -
>    https://user-images.githubusercontent.com/7712992/256463049-9fb079f8-95a7-4e07-875b-37483bd92de2.png
>
>
>
> Model metadata, excerpted:
>
>
>
> <X3D profile='Immersive' version=’3.0’
>
>     xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance'
>
>     xsd:noNamespaceSchemaLocation='
> http://www.web3d.org/specifications/x3d-3.0.xsd'>
>
> <head>
>
>   <meta name='creator' content='Emilio Pisanty' />
>
>   <meta name='created' content='Thu 26 Mar 2020 19:16:33' />
>
>   <meta name='title'
> content='imaginary-harmonic-cutoff-figureOc_alpha.x3d'/>
>
>   <meta name='description' content='3D Fig. 1c in Pisanty et al, 2020'/>
>
>   <meta name='modifier' content='Andreas Plesch'/>
>
>   <meta name='modified' content='26 July 2023'/>
>
>   <meta name='reason' content='transparency'/>
>
>   <meta name='reference' content='
> https://imaginary-harmonic-cutoff.github.io'/>
>
>   <meta name='reference' content='https://doi.org/10.5281/zenodo.3758483
> '/>
>
>   <meta name='reference' content='https://doi.org/10.1088/2515-7647/ab8f1e
> '/>
>
>   <meta name='reference' content='https://arxiv.org/abs/2003.00277v2'/>
>
>   <meta name='reference' content='The imaginary part of the high-harmonic
> cutoff. E. Pisanty, M.F. Ciappina and M. Lewenstein. J. Phys. Photonics 2,
> 034013 (2020), arXiv:2003.00277.'/>
>
>   <meta name='rights' content='© Emilio Pisanty, 2020'/>
>
>   <meta name='subject' content='Photonics: The imaginary part of the
> high-harmonic cutoff'/>
>
>   <meta name='identifier' content='
> https://gist.github.com/andreasplesch/7716cf62d552a92504f704c6512b1738#file-imaginary-harmonic-cutoff-figureoc_alpha-x3d
> '/>
>
>   <meta name='generator' content='Wolfram Mathematica
> https://www.wolfram.com/mathematica'/>
>
>   <meta name='generator' content='https://doi.org/10.5281/zenodo.3692562
> '/>
>
>   <meta name='license' content='CC BY-SA 4.0
> https://creativecommons.org/licenses/by-sa/4.0'/>
>
> </head>
>
>
>
> from thread
>
>    - Patchy appearance of semi-transparent objects where they lie behind
>    themselves
>    - https://github.com/x3dom/x3dom/issues/1053
>
>
>
> Totally impressive, feels like multiple major steps forward.
> Congratulations and thanks to the model authors and x3dom team!
>
>
>
> all the best, Don
>
> --
>
> Don Brutzman  Naval Postgraduate School, Code USW/Br
> brutzman at nps.edu
>
> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
> +1.831.656.2149
>
> X3D graphics, virtual worlds, navy robotics
> https://faculty.nps.edu/brutzman
>
>
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> x3d-public at web3d.org
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>
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